| /****************************************************************************** |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| * USA |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called LICENSE.GPL. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| *****************************************************************************/ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/etherdevice.h> |
| #include <net/mac80211.h> |
| |
| #include "iwl-eeprom.h" |
| #include "iwl-dev.h" /* FIXME: remove */ |
| #include "iwl-debug.h" |
| #include "iwl-core.h" |
| #include "iwl-io.h" |
| #include "iwl-power.h" |
| #include "iwl-sta.h" |
| #include "iwl-helpers.h" |
| |
| |
| MODULE_DESCRIPTION("iwl core"); |
| MODULE_VERSION(IWLWIFI_VERSION); |
| MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
| MODULE_LICENSE("GPL"); |
| |
| #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ |
| [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ |
| IWL_RATE_SISO_##s##M_PLCP, \ |
| IWL_RATE_MIMO2_##s##M_PLCP,\ |
| IWL_RATE_MIMO3_##s##M_PLCP,\ |
| IWL_RATE_##r##M_IEEE, \ |
| IWL_RATE_##ip##M_INDEX, \ |
| IWL_RATE_##in##M_INDEX, \ |
| IWL_RATE_##rp##M_INDEX, \ |
| IWL_RATE_##rn##M_INDEX, \ |
| IWL_RATE_##pp##M_INDEX, \ |
| IWL_RATE_##np##M_INDEX } |
| |
| u32 iwl_debug_level; |
| EXPORT_SYMBOL(iwl_debug_level); |
| |
| static irqreturn_t iwl_isr(int irq, void *data); |
| |
| /* |
| * Parameter order: |
| * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate |
| * |
| * If there isn't a valid next or previous rate then INV is used which |
| * maps to IWL_RATE_INVALID |
| * |
| */ |
| const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { |
| IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ |
| IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ |
| IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ |
| IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ |
| IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ |
| IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ |
| IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ |
| IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ |
| IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ |
| IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ |
| IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ |
| IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ |
| IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ |
| /* FIXME:RS: ^^ should be INV (legacy) */ |
| }; |
| EXPORT_SYMBOL(iwl_rates); |
| |
| /** |
| * translate ucode response to mac80211 tx status control values |
| */ |
| void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, |
| struct ieee80211_tx_info *info) |
| { |
| int rate_index; |
| struct ieee80211_tx_rate *r = &info->control.rates[0]; |
| |
| info->antenna_sel_tx = |
| ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); |
| if (rate_n_flags & RATE_MCS_HT_MSK) |
| r->flags |= IEEE80211_TX_RC_MCS; |
| if (rate_n_flags & RATE_MCS_GF_MSK) |
| r->flags |= IEEE80211_TX_RC_GREEN_FIELD; |
| if (rate_n_flags & RATE_MCS_HT40_MSK) |
| r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
| if (rate_n_flags & RATE_MCS_DUP_MSK) |
| r->flags |= IEEE80211_TX_RC_DUP_DATA; |
| if (rate_n_flags & RATE_MCS_SGI_MSK) |
| r->flags |= IEEE80211_TX_RC_SHORT_GI; |
| rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); |
| if (info->band == IEEE80211_BAND_5GHZ) |
| rate_index -= IWL_FIRST_OFDM_RATE; |
| r->idx = rate_index; |
| } |
| EXPORT_SYMBOL(iwl_hwrate_to_tx_control); |
| |
| int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) |
| { |
| int idx = 0; |
| |
| /* HT rate format */ |
| if (rate_n_flags & RATE_MCS_HT_MSK) { |
| idx = (rate_n_flags & 0xff); |
| |
| if (idx >= IWL_RATE_MIMO3_6M_PLCP) |
| idx = idx - IWL_RATE_MIMO3_6M_PLCP; |
| else if (idx >= IWL_RATE_MIMO2_6M_PLCP) |
| idx = idx - IWL_RATE_MIMO2_6M_PLCP; |
| |
| idx += IWL_FIRST_OFDM_RATE; |
| /* skip 9M not supported in ht*/ |
| if (idx >= IWL_RATE_9M_INDEX) |
| idx += 1; |
| if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) |
| return idx; |
| |
| /* legacy rate format, search for match in table */ |
| } else { |
| for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) |
| if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) |
| return idx; |
| } |
| |
| return -1; |
| } |
| EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); |
| |
| u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) |
| { |
| int i; |
| u8 ind = ant; |
| for (i = 0; i < RATE_ANT_NUM - 1; i++) { |
| ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; |
| if (priv->hw_params.valid_tx_ant & BIT(ind)) |
| return ind; |
| } |
| return ant; |
| } |
| |
| const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| EXPORT_SYMBOL(iwl_bcast_addr); |
| |
| |
| /* This function both allocates and initializes hw and priv. */ |
| struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, |
| struct ieee80211_ops *hw_ops) |
| { |
| struct iwl_priv *priv; |
| |
| /* mac80211 allocates memory for this device instance, including |
| * space for this driver's private structure */ |
| struct ieee80211_hw *hw = |
| ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); |
| if (hw == NULL) { |
| printk(KERN_ERR "%s: Can not allocate network device\n", |
| cfg->name); |
| goto out; |
| } |
| |
| priv = hw->priv; |
| priv->hw = hw; |
| |
| out: |
| return hw; |
| } |
| EXPORT_SYMBOL(iwl_alloc_all); |
| |
| void iwl_hw_detect(struct iwl_priv *priv) |
| { |
| priv->hw_rev = _iwl_read32(priv, CSR_HW_REV); |
| priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG); |
| pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id); |
| } |
| EXPORT_SYMBOL(iwl_hw_detect); |
| |
| int iwl_hw_nic_init(struct iwl_priv *priv) |
| { |
| unsigned long flags; |
| struct iwl_rx_queue *rxq = &priv->rxq; |
| int ret; |
| |
| /* nic_init */ |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->cfg->ops->lib->apm_ops.init(priv); |
| iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); |
| |
| priv->cfg->ops->lib->apm_ops.config(priv); |
| |
| /* Allocate the RX queue, or reset if it is already allocated */ |
| if (!rxq->bd) { |
| ret = iwl_rx_queue_alloc(priv); |
| if (ret) { |
| IWL_ERR(priv, "Unable to initialize Rx queue\n"); |
| return -ENOMEM; |
| } |
| } else |
| iwl_rx_queue_reset(priv, rxq); |
| |
| iwl_rx_replenish(priv); |
| |
| iwl_rx_init(priv, rxq); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| rxq->need_update = 1; |
| iwl_rx_queue_update_write_ptr(priv, rxq); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| /* Allocate and init all Tx and Command queues */ |
| ret = iwl_txq_ctx_reset(priv); |
| if (ret) |
| return ret; |
| |
| set_bit(STATUS_INIT, &priv->status); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_hw_nic_init); |
| |
| /* |
| * QoS support |
| */ |
| void iwl_activate_qos(struct iwl_priv *priv, u8 force) |
| { |
| if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| return; |
| |
| priv->qos_data.def_qos_parm.qos_flags = 0; |
| |
| if (priv->qos_data.qos_cap.q_AP.queue_request && |
| !priv->qos_data.qos_cap.q_AP.txop_request) |
| priv->qos_data.def_qos_parm.qos_flags |= |
| QOS_PARAM_FLG_TXOP_TYPE_MSK; |
| if (priv->qos_data.qos_active) |
| priv->qos_data.def_qos_parm.qos_flags |= |
| QOS_PARAM_FLG_UPDATE_EDCA_MSK; |
| |
| if (priv->current_ht_config.is_ht) |
| priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
| |
| if (force || iwl_is_associated(priv)) { |
| IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
| priv->qos_data.qos_active, |
| priv->qos_data.def_qos_parm.qos_flags); |
| |
| iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM, |
| sizeof(struct iwl_qosparam_cmd), |
| &priv->qos_data.def_qos_parm, NULL); |
| } |
| } |
| EXPORT_SYMBOL(iwl_activate_qos); |
| |
| /* |
| * AC CWmin CW max AIFSN TXOP Limit TXOP Limit |
| * (802.11b) (802.11a/g) |
| * AC_BK 15 1023 7 0 0 |
| * AC_BE 15 1023 3 0 0 |
| * AC_VI 7 15 2 6.016ms 3.008ms |
| * AC_VO 3 7 2 3.264ms 1.504ms |
| */ |
| void iwl_reset_qos(struct iwl_priv *priv) |
| { |
| u16 cw_min = 15; |
| u16 cw_max = 1023; |
| u8 aifs = 2; |
| bool is_legacy = false; |
| unsigned long flags; |
| int i; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| /* QoS always active in AP and ADHOC mode |
| * In STA mode wait for association |
| */ |
| if (priv->iw_mode == NL80211_IFTYPE_ADHOC || |
| priv->iw_mode == NL80211_IFTYPE_AP) |
| priv->qos_data.qos_active = 1; |
| else |
| priv->qos_data.qos_active = 0; |
| |
| /* check for legacy mode */ |
| if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || |
| (priv->iw_mode == NL80211_IFTYPE_STATION && |
| (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { |
| cw_min = 31; |
| is_legacy = 1; |
| } |
| |
| if (priv->qos_data.qos_active) |
| aifs = 3; |
| |
| /* AC_BE */ |
| priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; |
| priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; |
| priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; |
| |
| if (priv->qos_data.qos_active) { |
| /* AC_BK */ |
| i = 1; |
| priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = 7; |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| |
| /* AC_VI */ |
| i = 2; |
| priv->qos_data.def_qos_parm.ac[i].cw_min = |
| cpu_to_le16((cw_min + 1) / 2 - 1); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = |
| cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = 2; |
| if (is_legacy) |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(6016); |
| else |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(3008); |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| |
| /* AC_VO */ |
| i = 3; |
| priv->qos_data.def_qos_parm.ac[i].cw_min = |
| cpu_to_le16((cw_min + 1) / 4 - 1); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = |
| cpu_to_le16((cw_min + 1) / 2 - 1); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = 2; |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| if (is_legacy) |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(3264); |
| else |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| cpu_to_le16(1504); |
| } else { |
| for (i = 1; i < 4; i++) { |
| priv->qos_data.def_qos_parm.ac[i].cw_min = |
| cpu_to_le16(cw_min); |
| priv->qos_data.def_qos_parm.ac[i].cw_max = |
| cpu_to_le16(cw_max); |
| priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; |
| priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; |
| priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| } |
| } |
| IWL_DEBUG_QOS(priv, "set QoS to default \n"); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| EXPORT_SYMBOL(iwl_reset_qos); |
| |
| #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
| #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ |
| static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, |
| struct ieee80211_sta_ht_cap *ht_info, |
| enum ieee80211_band band) |
| { |
| u16 max_bit_rate = 0; |
| u8 rx_chains_num = priv->hw_params.rx_chains_num; |
| u8 tx_chains_num = priv->hw_params.tx_chains_num; |
| |
| ht_info->cap = 0; |
| memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
| |
| ht_info->ht_supported = true; |
| |
| ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
| ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
| ht_info->cap |= (IEEE80211_HT_CAP_SM_PS & |
| (WLAN_HT_CAP_SM_PS_DISABLED << 2)); |
| |
| max_bit_rate = MAX_BIT_RATE_20_MHZ; |
| if (priv->hw_params.ht40_channel & BIT(band)) { |
| ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| ht_info->cap |= IEEE80211_HT_CAP_SGI_40; |
| ht_info->mcs.rx_mask[4] = 0x01; |
| max_bit_rate = MAX_BIT_RATE_40_MHZ; |
| } |
| |
| if (priv->cfg->mod_params->amsdu_size_8K) |
| ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
| |
| ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; |
| ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; |
| |
| ht_info->mcs.rx_mask[0] = 0xFF; |
| if (rx_chains_num >= 2) |
| ht_info->mcs.rx_mask[1] = 0xFF; |
| if (rx_chains_num >= 3) |
| ht_info->mcs.rx_mask[2] = 0xFF; |
| |
| /* Highest supported Rx data rate */ |
| max_bit_rate *= rx_chains_num; |
| WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); |
| ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); |
| |
| /* Tx MCS capabilities */ |
| ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
| if (tx_chains_num != rx_chains_num) { |
| ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
| ht_info->mcs.tx_params |= ((tx_chains_num - 1) << |
| IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
| } |
| } |
| |
| static void iwlcore_init_hw_rates(struct iwl_priv *priv, |
| struct ieee80211_rate *rates) |
| { |
| int i; |
| |
| for (i = 0; i < IWL_RATE_COUNT; i++) { |
| rates[i].bitrate = iwl_rates[i].ieee * 5; |
| rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
| rates[i].hw_value_short = i; |
| rates[i].flags = 0; |
| if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { |
| /* |
| * If CCK != 1M then set short preamble rate flag. |
| */ |
| rates[i].flags |= |
| (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
| 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
| } |
| } |
| } |
| |
| |
| /** |
| * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom |
| */ |
| int iwlcore_init_geos(struct iwl_priv *priv) |
| { |
| struct iwl_channel_info *ch; |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_channel *channels; |
| struct ieee80211_channel *geo_ch; |
| struct ieee80211_rate *rates; |
| int i = 0; |
| |
| if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
| priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { |
| IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n"); |
| set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| return 0; |
| } |
| |
| channels = kzalloc(sizeof(struct ieee80211_channel) * |
| priv->channel_count, GFP_KERNEL); |
| if (!channels) |
| return -ENOMEM; |
| |
| rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), |
| GFP_KERNEL); |
| if (!rates) { |
| kfree(channels); |
| return -ENOMEM; |
| } |
| |
| /* 5.2GHz channels start after the 2.4GHz channels */ |
| sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; |
| /* just OFDM */ |
| sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; |
| sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; |
| |
| if (priv->cfg->sku & IWL_SKU_N) |
| iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
| IEEE80211_BAND_5GHZ); |
| |
| sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| sband->channels = channels; |
| /* OFDM & CCK */ |
| sband->bitrates = rates; |
| sband->n_bitrates = IWL_RATE_COUNT; |
| |
| if (priv->cfg->sku & IWL_SKU_N) |
| iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
| IEEE80211_BAND_2GHZ); |
| |
| priv->ieee_channels = channels; |
| priv->ieee_rates = rates; |
| |
| for (i = 0; i < priv->channel_count; i++) { |
| ch = &priv->channel_info[i]; |
| |
| /* FIXME: might be removed if scan is OK */ |
| if (!is_channel_valid(ch)) |
| continue; |
| |
| if (is_channel_a_band(ch)) |
| sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| else |
| sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| |
| geo_ch = &sband->channels[sband->n_channels++]; |
| |
| geo_ch->center_freq = |
| ieee80211_channel_to_frequency(ch->channel); |
| geo_ch->max_power = ch->max_power_avg; |
| geo_ch->max_antenna_gain = 0xff; |
| geo_ch->hw_value = ch->channel; |
| |
| if (is_channel_valid(ch)) { |
| if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
| geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; |
| |
| if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
| geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; |
| |
| if (ch->flags & EEPROM_CHANNEL_RADAR) |
| geo_ch->flags |= IEEE80211_CHAN_RADAR; |
| |
| geo_ch->flags |= ch->ht40_extension_channel; |
| |
| if (ch->max_power_avg > priv->tx_power_channel_lmt) |
| priv->tx_power_channel_lmt = ch->max_power_avg; |
| } else { |
| geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
| } |
| |
| IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", |
| ch->channel, geo_ch->center_freq, |
| is_channel_a_band(ch) ? "5.2" : "2.4", |
| geo_ch->flags & IEEE80211_CHAN_DISABLED ? |
| "restricted" : "valid", |
| geo_ch->flags); |
| } |
| |
| if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
| priv->cfg->sku & IWL_SKU_A) { |
| IWL_INFO(priv, "Incorrectly detected BG card as ABG. " |
| "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n", |
| priv->pci_dev->device, |
| priv->pci_dev->subsystem_device); |
| priv->cfg->sku &= ~IWL_SKU_A; |
| } |
| |
| IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", |
| priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
| priv->bands[IEEE80211_BAND_5GHZ].n_channels); |
| |
| set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwlcore_init_geos); |
| |
| /* |
| * iwlcore_free_geos - undo allocations in iwlcore_init_geos |
| */ |
| void iwlcore_free_geos(struct iwl_priv *priv) |
| { |
| kfree(priv->ieee_channels); |
| kfree(priv->ieee_rates); |
| clear_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| } |
| EXPORT_SYMBOL(iwlcore_free_geos); |
| |
| static bool is_single_rx_stream(struct iwl_priv *priv) |
| { |
| return !priv->current_ht_config.is_ht || |
| ((priv->current_ht_config.mcs.rx_mask[1] == 0) && |
| (priv->current_ht_config.mcs.rx_mask[2] == 0)); |
| } |
| |
| static u8 iwl_is_channel_extension(struct iwl_priv *priv, |
| enum ieee80211_band band, |
| u16 channel, u8 extension_chan_offset) |
| { |
| const struct iwl_channel_info *ch_info; |
| |
| ch_info = iwl_get_channel_info(priv, band, channel); |
| if (!is_channel_valid(ch_info)) |
| return 0; |
| |
| if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) |
| return !(ch_info->ht40_extension_channel & |
| IEEE80211_CHAN_NO_HT40PLUS); |
| else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
| return !(ch_info->ht40_extension_channel & |
| IEEE80211_CHAN_NO_HT40MINUS); |
| |
| return 0; |
| } |
| |
| u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv, |
| struct ieee80211_sta_ht_cap *sta_ht_inf) |
| { |
| struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; |
| |
| if ((!iwl_ht_conf->is_ht) || |
| (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ)) |
| return 0; |
| |
| /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
| * the bit will not set if it is pure 40MHz case |
| */ |
| if (sta_ht_inf) { |
| if (!sta_ht_inf->ht_supported) |
| return 0; |
| } |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| if (priv->disable_ht40) |
| return 0; |
| #endif |
| return iwl_is_channel_extension(priv, priv->band, |
| le16_to_cpu(priv->staging_rxon.channel), |
| iwl_ht_conf->extension_chan_offset); |
| } |
| EXPORT_SYMBOL(iwl_is_ht40_tx_allowed); |
| |
| static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) |
| { |
| u16 new_val = 0; |
| u16 beacon_factor = 0; |
| |
| beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; |
| new_val = beacon_val / beacon_factor; |
| |
| if (!new_val) |
| new_val = max_beacon_val; |
| |
| return new_val; |
| } |
| |
| void iwl_setup_rxon_timing(struct iwl_priv *priv) |
| { |
| u64 tsf; |
| s32 interval_tm, rem; |
| unsigned long flags; |
| struct ieee80211_conf *conf = NULL; |
| u16 beacon_int; |
| |
| conf = ieee80211_get_hw_conf(priv->hw); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
| priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval); |
| |
| if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
| beacon_int = priv->beacon_int; |
| priv->rxon_timing.atim_window = 0; |
| } else { |
| beacon_int = priv->vif->bss_conf.beacon_int; |
| |
| /* TODO: we need to get atim_window from upper stack |
| * for now we set to 0 */ |
| priv->rxon_timing.atim_window = 0; |
| } |
| |
| beacon_int = iwl_adjust_beacon_interval(beacon_int, |
| priv->hw_params.max_beacon_itrvl * 1024); |
| priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int); |
| |
| tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ |
| interval_tm = beacon_int * 1024; |
| rem = do_div(tsf, interval_tm); |
| priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| IWL_DEBUG_ASSOC(priv, |
| "beacon interval %d beacon timer %d beacon tim %d\n", |
| le16_to_cpu(priv->rxon_timing.beacon_interval), |
| le32_to_cpu(priv->rxon_timing.beacon_init_val), |
| le16_to_cpu(priv->rxon_timing.atim_window)); |
| } |
| EXPORT_SYMBOL(iwl_setup_rxon_timing); |
| |
| void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
| { |
| struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| |
| if (hw_decrypt) |
| rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; |
| else |
| rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; |
| |
| } |
| EXPORT_SYMBOL(iwl_set_rxon_hwcrypto); |
| |
| /** |
| * iwl_check_rxon_cmd - validate RXON structure is valid |
| * |
| * NOTE: This is really only useful during development and can eventually |
| * be #ifdef'd out once the driver is stable and folks aren't actively |
| * making changes |
| */ |
| int iwl_check_rxon_cmd(struct iwl_priv *priv) |
| { |
| int error = 0; |
| int counter = 1; |
| struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| |
| if (rxon->flags & RXON_FLG_BAND_24G_MSK) { |
| error |= le32_to_cpu(rxon->flags & |
| (RXON_FLG_TGJ_NARROW_BAND_MSK | |
| RXON_FLG_RADAR_DETECT_MSK)); |
| if (error) |
| IWL_WARN(priv, "check 24G fields %d | %d\n", |
| counter++, error); |
| } else { |
| error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? |
| 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); |
| if (error) |
| IWL_WARN(priv, "check 52 fields %d | %d\n", |
| counter++, error); |
| error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); |
| if (error) |
| IWL_WARN(priv, "check 52 CCK %d | %d\n", |
| counter++, error); |
| } |
| error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; |
| if (error) |
| IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error); |
| |
| /* make sure basic rates 6Mbps and 1Mbps are supported */ |
| error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && |
| ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); |
| if (error) |
| IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error); |
| |
| error |= (le16_to_cpu(rxon->assoc_id) > 2007); |
| if (error) |
| IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error); |
| |
| error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) |
| == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); |
| if (error) |
| IWL_WARN(priv, "check CCK and short slot %d | %d\n", |
| counter++, error); |
| |
| error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) |
| == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); |
| if (error) |
| IWL_WARN(priv, "check CCK & auto detect %d | %d\n", |
| counter++, error); |
| |
| error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | |
| RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); |
| if (error) |
| IWL_WARN(priv, "check TGG and auto detect %d | %d\n", |
| counter++, error); |
| |
| if (error) |
| IWL_WARN(priv, "Tuning to channel %d\n", |
| le16_to_cpu(rxon->channel)); |
| |
| if (error) { |
| IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n"); |
| return -1; |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_check_rxon_cmd); |
| |
| /** |
| * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
| * @priv: staging_rxon is compared to active_rxon |
| * |
| * If the RXON structure is changing enough to require a new tune, |
| * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that |
| * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. |
| */ |
| int iwl_full_rxon_required(struct iwl_priv *priv) |
| { |
| |
| /* These items are only settable from the full RXON command */ |
| if (!(iwl_is_associated(priv)) || |
| compare_ether_addr(priv->staging_rxon.bssid_addr, |
| priv->active_rxon.bssid_addr) || |
| compare_ether_addr(priv->staging_rxon.node_addr, |
| priv->active_rxon.node_addr) || |
| compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, |
| priv->active_rxon.wlap_bssid_addr) || |
| (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || |
| (priv->staging_rxon.channel != priv->active_rxon.channel) || |
| (priv->staging_rxon.air_propagation != |
| priv->active_rxon.air_propagation) || |
| (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != |
| priv->active_rxon.ofdm_ht_single_stream_basic_rates) || |
| (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != |
| priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || |
| (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates != |
| priv->active_rxon.ofdm_ht_triple_stream_basic_rates) || |
| (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) |
| return 1; |
| |
| /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can |
| * be updated with the RXON_ASSOC command -- however only some |
| * flag transitions are allowed using RXON_ASSOC */ |
| |
| /* Check if we are not switching bands */ |
| if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != |
| (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) |
| return 1; |
| |
| /* Check if we are switching association toggle */ |
| if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != |
| (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) |
| return 1; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_full_rxon_required); |
| |
| u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) |
| { |
| int i; |
| int rate_mask; |
| |
| /* Set rate mask*/ |
| if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) |
| rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; |
| else |
| rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; |
| |
| /* Find lowest valid rate */ |
| for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
| i = iwl_rates[i].next_ieee) { |
| if (rate_mask & (1 << i)) |
| return iwl_rates[i].plcp; |
| } |
| |
| /* No valid rate was found. Assign the lowest one */ |
| if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) |
| return IWL_RATE_1M_PLCP; |
| else |
| return IWL_RATE_6M_PLCP; |
| } |
| EXPORT_SYMBOL(iwl_rate_get_lowest_plcp); |
| |
| void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) |
| { |
| struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| |
| if (!ht_info->is_ht) { |
| rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | |
| RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | |
| RXON_FLG_HT40_PROT_MSK | |
| RXON_FLG_HT_PROT_MSK); |
| return; |
| } |
| |
| /* FIXME: if the definition of ht_protection changed, the "translation" |
| * will be needed for rxon->flags |
| */ |
| rxon->flags |= cpu_to_le32(ht_info->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS); |
| |
| /* Set up channel bandwidth: |
| * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ |
| /* clear the HT channel mode before set the mode */ |
| rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | |
| RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
| if (iwl_is_ht40_tx_allowed(priv, NULL)) { |
| /* pure ht40 */ |
| if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { |
| rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; |
| /* Note: control channel is opposite of extension channel */ |
| switch (ht_info->extension_chan_offset) { |
| case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| break; |
| case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| break; |
| } |
| } else { |
| /* Note: control channel is opposite of extension channel */ |
| switch (ht_info->extension_chan_offset) { |
| case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
| rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; |
| break; |
| case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; |
| break; |
| case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
| default: |
| /* channel location only valid if in Mixed mode */ |
| IWL_ERR(priv, "invalid extension channel offset\n"); |
| break; |
| } |
| } |
| } else { |
| rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; |
| } |
| |
| if (priv->cfg->ops->hcmd->set_rxon_chain) |
| priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| |
| IWL_DEBUG_ASSOC(priv, "supported HT rate 0x%X 0x%X 0x%X " |
| "rxon flags 0x%X operation mode :0x%X " |
| "extension channel offset 0x%x\n", |
| ht_info->mcs.rx_mask[0], |
| ht_info->mcs.rx_mask[1], |
| ht_info->mcs.rx_mask[2], |
| le32_to_cpu(rxon->flags), ht_info->ht_protection, |
| ht_info->extension_chan_offset); |
| return; |
| } |
| EXPORT_SYMBOL(iwl_set_rxon_ht); |
| |
| #define IWL_NUM_RX_CHAINS_MULTIPLE 3 |
| #define IWL_NUM_RX_CHAINS_SINGLE 2 |
| #define IWL_NUM_IDLE_CHAINS_DUAL 2 |
| #define IWL_NUM_IDLE_CHAINS_SINGLE 1 |
| |
| /* Determine how many receiver/antenna chains to use. |
| * More provides better reception via diversity. Fewer saves power. |
| * MIMO (dual stream) requires at least 2, but works better with 3. |
| * This does not determine *which* chains to use, just how many. |
| */ |
| static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) |
| { |
| bool is_single = is_single_rx_stream(priv); |
| bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); |
| |
| /* # of Rx chains to use when expecting MIMO. */ |
| if (is_single || (!is_cam && (priv->current_ht_config.sm_ps == |
| WLAN_HT_CAP_SM_PS_STATIC))) |
| return IWL_NUM_RX_CHAINS_SINGLE; |
| else |
| return IWL_NUM_RX_CHAINS_MULTIPLE; |
| } |
| |
| static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) |
| { |
| int idle_cnt; |
| bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); |
| /* # Rx chains when idling and maybe trying to save power */ |
| switch (priv->current_ht_config.sm_ps) { |
| case WLAN_HT_CAP_SM_PS_STATIC: |
| case WLAN_HT_CAP_SM_PS_DYNAMIC: |
| idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL : |
| IWL_NUM_IDLE_CHAINS_SINGLE; |
| break; |
| case WLAN_HT_CAP_SM_PS_DISABLED: |
| idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE; |
| break; |
| case WLAN_HT_CAP_SM_PS_INVALID: |
| default: |
| IWL_ERR(priv, "invalid mimo ps mode %d\n", |
| priv->current_ht_config.sm_ps); |
| WARN_ON(1); |
| idle_cnt = -1; |
| break; |
| } |
| return idle_cnt; |
| } |
| |
| /* up to 4 chains */ |
| static u8 iwl_count_chain_bitmap(u32 chain_bitmap) |
| { |
| u8 res; |
| res = (chain_bitmap & BIT(0)) >> 0; |
| res += (chain_bitmap & BIT(1)) >> 1; |
| res += (chain_bitmap & BIT(2)) >> 2; |
| res += (chain_bitmap & BIT(4)) >> 4; |
| return res; |
| } |
| |
| /** |
| * iwl_is_monitor_mode - Determine if interface in monitor mode |
| * |
| * priv->iw_mode is set in add_interface, but add_interface is |
| * never called for monitor mode. The only way mac80211 informs us about |
| * monitor mode is through configuring filters (call to configure_filter). |
| */ |
| bool iwl_is_monitor_mode(struct iwl_priv *priv) |
| { |
| return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK); |
| } |
| EXPORT_SYMBOL(iwl_is_monitor_mode); |
| |
| /** |
| * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image |
| * |
| * Selects how many and which Rx receivers/antennas/chains to use. |
| * This should not be used for scan command ... it puts data in wrong place. |
| */ |
| void iwl_set_rxon_chain(struct iwl_priv *priv) |
| { |
| bool is_single = is_single_rx_stream(priv); |
| bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); |
| u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; |
| u32 active_chains; |
| u16 rx_chain; |
| |
| /* Tell uCode which antennas are actually connected. |
| * Before first association, we assume all antennas are connected. |
| * Just after first association, iwl_chain_noise_calibration() |
| * checks which antennas actually *are* connected. */ |
| if (priv->chain_noise_data.active_chains) |
| active_chains = priv->chain_noise_data.active_chains; |
| else |
| active_chains = priv->hw_params.valid_rx_ant; |
| |
| rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; |
| |
| /* How many receivers should we use? */ |
| active_rx_cnt = iwl_get_active_rx_chain_count(priv); |
| idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); |
| |
| |
| /* correct rx chain count according hw settings |
| * and chain noise calibration |
| */ |
| valid_rx_cnt = iwl_count_chain_bitmap(active_chains); |
| if (valid_rx_cnt < active_rx_cnt) |
| active_rx_cnt = valid_rx_cnt; |
| |
| if (valid_rx_cnt < idle_rx_cnt) |
| idle_rx_cnt = valid_rx_cnt; |
| |
| rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; |
| rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; |
| |
| /* copied from 'iwl_bg_request_scan()' */ |
| /* Force use of chains B and C (0x6) for Rx for 4965 |
| * Avoid A (0x1) because of its off-channel reception on A-band. |
| * MIMO is not used here, but value is required */ |
| if (iwl_is_monitor_mode(priv) && |
| !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) && |
| ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) { |
| rx_chain = ANT_ABC << RXON_RX_CHAIN_VALID_POS; |
| rx_chain |= ANT_BC << RXON_RX_CHAIN_FORCE_SEL_POS; |
| rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; |
| rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS; |
| } |
| |
| priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain); |
| |
| if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) |
| priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; |
| else |
| priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; |
| |
| IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", |
| priv->staging_rxon.rx_chain, |
| active_rx_cnt, idle_rx_cnt); |
| |
| WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || |
| active_rx_cnt < idle_rx_cnt); |
| } |
| EXPORT_SYMBOL(iwl_set_rxon_chain); |
| |
| /** |
| * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON |
| * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz |
| * @channel: Any channel valid for the requested phymode |
| |
| * In addition to setting the staging RXON, priv->phymode is also set. |
| * |
| * NOTE: Does not commit to the hardware; it sets appropriate bit fields |
| * in the staging RXON flag structure based on the phymode |
| */ |
| int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) |
| { |
| enum ieee80211_band band = ch->band; |
| u16 channel = ieee80211_frequency_to_channel(ch->center_freq); |
| |
| if (!iwl_get_channel_info(priv, band, channel)) { |
| IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n", |
| channel, band); |
| return -EINVAL; |
| } |
| |
| if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && |
| (priv->band == band)) |
| return 0; |
| |
| priv->staging_rxon.channel = cpu_to_le16(channel); |
| if (band == IEEE80211_BAND_5GHZ) |
| priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
| else |
| priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; |
| |
| priv->band = band; |
| |
| IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_set_rxon_channel); |
| |
| void iwl_set_flags_for_band(struct iwl_priv *priv, |
| enum ieee80211_band band) |
| { |
| if (band == IEEE80211_BAND_5GHZ) { |
| priv->staging_rxon.flags &= |
| ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK |
| | RXON_FLG_CCK_MSK); |
| priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
| } else { |
| /* Copied from iwl_post_associate() */ |
| if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
| priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
| else |
| priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| |
| if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
| priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| |
| priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; |
| priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; |
| priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; |
| } |
| } |
| |
| /* |
| * initialize rxon structure with default values from eeprom |
| */ |
| void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) |
| { |
| const struct iwl_channel_info *ch_info; |
| |
| memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); |
| |
| switch (mode) { |
| case NL80211_IFTYPE_AP: |
| priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
| break; |
| |
| case NL80211_IFTYPE_STATION: |
| priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
| priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; |
| break; |
| |
| case NL80211_IFTYPE_ADHOC: |
| priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
| priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; |
| priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | |
| RXON_FILTER_ACCEPT_GRP_MSK; |
| break; |
| |
| default: |
| IWL_ERR(priv, "Unsupported interface type %d\n", mode); |
| break; |
| } |
| |
| #if 0 |
| /* TODO: Figure out when short_preamble would be set and cache from |
| * that */ |
| if (!hw_to_local(priv->hw)->short_preamble) |
| priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| else |
| priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
| #endif |
| |
| ch_info = iwl_get_channel_info(priv, priv->band, |
| le16_to_cpu(priv->active_rxon.channel)); |
| |
| if (!ch_info) |
| ch_info = &priv->channel_info[0]; |
| |
| /* |
| * in some case A channels are all non IBSS |
| * in this case force B/G channel |
| */ |
| if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) && |
| !(is_channel_ibss(ch_info))) |
| ch_info = &priv->channel_info[0]; |
| |
| priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); |
| priv->band = ch_info->band; |
| |
| iwl_set_flags_for_band(priv, priv->band); |
| |
| priv->staging_rxon.ofdm_basic_rates = |
| (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; |
| priv->staging_rxon.cck_basic_rates = |
| (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; |
| |
| /* clear both MIX and PURE40 mode flag */ |
| priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | |
| RXON_FLG_CHANNEL_MODE_PURE_40); |
| memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
| memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); |
| priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; |
| priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; |
| priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff; |
| } |
| EXPORT_SYMBOL(iwl_connection_init_rx_config); |
| |
| static void iwl_set_rate(struct iwl_priv *priv) |
| { |
| const struct ieee80211_supported_band *hw = NULL; |
| struct ieee80211_rate *rate; |
| int i; |
| |
| hw = iwl_get_hw_mode(priv, priv->band); |
| if (!hw) { |
| IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n"); |
| return; |
| } |
| |
| priv->active_rate = 0; |
| priv->active_rate_basic = 0; |
| |
| for (i = 0; i < hw->n_bitrates; i++) { |
| rate = &(hw->bitrates[i]); |
| if (rate->hw_value < IWL_RATE_COUNT) |
| priv->active_rate |= (1 << rate->hw_value); |
| } |
| |
| IWL_DEBUG_RATE(priv, "Set active_rate = %0x, active_rate_basic = %0x\n", |
| priv->active_rate, priv->active_rate_basic); |
| |
| /* |
| * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) |
| * otherwise set it to the default of all CCK rates and 6, 12, 24 for |
| * OFDM |
| */ |
| if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) |
| priv->staging_rxon.cck_basic_rates = |
| ((priv->active_rate_basic & |
| IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; |
| else |
| priv->staging_rxon.cck_basic_rates = |
| (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; |
| |
| if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) |
| priv->staging_rxon.ofdm_basic_rates = |
| ((priv->active_rate_basic & |
| (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> |
| IWL_FIRST_OFDM_RATE) & 0xFF; |
| else |
| priv->staging_rxon.ofdm_basic_rates = |
| (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; |
| } |
| |
| void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
| struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
| struct iwl_csa_notification *csa = &(pkt->u.csa_notif); |
| IWL_DEBUG_11H(priv, "CSA notif: channel %d, status %d\n", |
| le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); |
| rxon->channel = csa->channel; |
| priv->staging_rxon.channel = csa->channel; |
| } |
| EXPORT_SYMBOL(iwl_rx_csa); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| static void iwl_print_rx_config_cmd(struct iwl_priv *priv) |
| { |
| struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| |
| IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); |
| iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
| IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
| IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); |
| IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", |
| le32_to_cpu(rxon->filter_flags)); |
| IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); |
| IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", |
| rxon->ofdm_basic_rates); |
| IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); |
| IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); |
| IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); |
| IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
| } |
| |
| static const char *desc_lookup_text[] = { |
| "OK", |
| "FAIL", |
| "BAD_PARAM", |
| "BAD_CHECKSUM", |
| "NMI_INTERRUPT_WDG", |
| "SYSASSERT", |
| "FATAL_ERROR", |
| "BAD_COMMAND", |
| "HW_ERROR_TUNE_LOCK", |
| "HW_ERROR_TEMPERATURE", |
| "ILLEGAL_CHAN_FREQ", |
| "VCC_NOT_STABLE", |
| "FH_ERROR", |
| "NMI_INTERRUPT_HOST", |
| "NMI_INTERRUPT_ACTION_PT", |
| "NMI_INTERRUPT_UNKNOWN", |
| "UCODE_VERSION_MISMATCH", |
| "HW_ERROR_ABS_LOCK", |
| "HW_ERROR_CAL_LOCK_FAIL", |
| "NMI_INTERRUPT_INST_ACTION_PT", |
| "NMI_INTERRUPT_DATA_ACTION_PT", |
| "NMI_TRM_HW_ER", |
| "NMI_INTERRUPT_TRM", |
| "NMI_INTERRUPT_BREAK_POINT" |
| "DEBUG_0", |
| "DEBUG_1", |
| "DEBUG_2", |
| "DEBUG_3", |
| "UNKNOWN" |
| }; |
| |
| static const char *desc_lookup(int i) |
| { |
| int max = ARRAY_SIZE(desc_lookup_text) - 1; |
| |
| if (i < 0 || i > max) |
| i = max; |
| |
| return desc_lookup_text[i]; |
| } |
| |
| #define ERROR_START_OFFSET (1 * sizeof(u32)) |
| #define ERROR_ELEM_SIZE (7 * sizeof(u32)) |
| |
| static void iwl_dump_nic_error_log(struct iwl_priv *priv) |
| { |
| u32 data2, line; |
| u32 desc, time, count, base, data1; |
| u32 blink1, blink2, ilink1, ilink2; |
| |
| if (priv->ucode_type == UCODE_INIT) |
| base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); |
| else |
| base = le32_to_cpu(priv->card_alive.error_event_table_ptr); |
| |
| if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
| IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
| return; |
| } |
| |
| count = iwl_read_targ_mem(priv, base); |
| |
| if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { |
| IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
| IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", |
| priv->status, count); |
| } |
| |
| desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); |
| blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); |
| blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); |
| ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); |
| ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); |
| data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); |
| data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); |
| line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); |
| time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); |
| |
| IWL_ERR(priv, "Desc Time " |
| "data1 data2 line\n"); |
| IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", |
| desc_lookup(desc), desc, time, data1, data2, line); |
| IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); |
| IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, |
| ilink1, ilink2); |
| |
| } |
| |
| #define EVENT_START_OFFSET (4 * sizeof(u32)) |
| |
| /** |
| * iwl_print_event_log - Dump error event log to syslog |
| * |
| */ |
| static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
| u32 num_events, u32 mode) |
| { |
| u32 i; |
| u32 base; /* SRAM byte address of event log header */ |
| u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ |
| u32 ptr; /* SRAM byte address of log data */ |
| u32 ev, time, data; /* event log data */ |
| |
| if (num_events == 0) |
| return; |
| if (priv->ucode_type == UCODE_INIT) |
| base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); |
| else |
| base = le32_to_cpu(priv->card_alive.log_event_table_ptr); |
| |
| if (mode == 0) |
| event_size = 2 * sizeof(u32); |
| else |
| event_size = 3 * sizeof(u32); |
| |
| ptr = base + EVENT_START_OFFSET + (start_idx * event_size); |
| |
| /* "time" is actually "data" for mode 0 (no timestamp). |
| * place event id # at far right for easier visual parsing. */ |
| for (i = 0; i < num_events; i++) { |
| ev = iwl_read_targ_mem(priv, ptr); |
| ptr += sizeof(u32); |
| time = iwl_read_targ_mem(priv, ptr); |
| ptr += sizeof(u32); |
| if (mode == 0) { |
| /* data, ev */ |
| IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev); |
| } else { |
| data = iwl_read_targ_mem(priv, ptr); |
| ptr += sizeof(u32); |
| IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", |
| time, data, ev); |
| } |
| } |
| } |
| |
| void iwl_dump_nic_event_log(struct iwl_priv *priv) |
| { |
| u32 base; /* SRAM byte address of event log header */ |
| u32 capacity; /* event log capacity in # entries */ |
| u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ |
| u32 num_wraps; /* # times uCode wrapped to top of log */ |
| u32 next_entry; /* index of next entry to be written by uCode */ |
| u32 size; /* # entries that we'll print */ |
| |
| if (priv->ucode_type == UCODE_INIT) |
| base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); |
| else |
| base = le32_to_cpu(priv->card_alive.log_event_table_ptr); |
| |
| if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
| IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
| return; |
| } |
| |
| /* event log header */ |
| capacity = iwl_read_targ_mem(priv, base); |
| mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); |
| num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); |
| next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); |
| |
| size = num_wraps ? capacity : next_entry; |
| |
| /* bail out if nothing in log */ |
| if (size == 0) { |
| IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
| return; |
| } |
| |
| IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", |
| size, num_wraps); |
| |
| /* if uCode has wrapped back to top of log, start at the oldest entry, |
| * i.e the next one that uCode would fill. */ |
| if (num_wraps) |
| iwl_print_event_log(priv, next_entry, |
| capacity - next_entry, mode); |
| /* (then/else) start at top of log */ |
| iwl_print_event_log(priv, 0, next_entry, mode); |
| |
| } |
| #endif |
| /** |
| * iwl_irq_handle_error - called for HW or SW error interrupt from card |
| */ |
| void iwl_irq_handle_error(struct iwl_priv *priv) |
| { |
| /* Set the FW error flag -- cleared on iwl_down */ |
| set_bit(STATUS_FW_ERROR, &priv->status); |
| |
| /* Cancel currently queued command. */ |
| clear_bit(STATUS_HCMD_ACTIVE, &priv->status); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) { |
| iwl_dump_nic_error_log(priv); |
| iwl_dump_nic_event_log(priv); |
| iwl_print_rx_config_cmd(priv); |
| } |
| #endif |
| |
| wake_up_interruptible(&priv->wait_command_queue); |
| |
| /* Keep the restart process from trying to send host |
| * commands by clearing the INIT status bit */ |
| clear_bit(STATUS_READY, &priv->status); |
| |
| if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
| IWL_DEBUG(priv, IWL_DL_FW_ERRORS, |
| "Restarting adapter due to uCode error.\n"); |
| |
| if (priv->cfg->mod_params->restart_fw) |
| queue_work(priv->workqueue, &priv->restart); |
| } |
| } |
| EXPORT_SYMBOL(iwl_irq_handle_error); |
| |
| void iwl_configure_filter(struct ieee80211_hw *hw, |
| unsigned int changed_flags, |
| unsigned int *total_flags, |
| int mc_count, struct dev_addr_list *mc_list) |
| { |
| struct iwl_priv *priv = hw->priv; |
| __le32 *filter_flags = &priv->staging_rxon.filter_flags; |
| |
| IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", |
| changed_flags, *total_flags); |
| |
| if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { |
| if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) |
| *filter_flags |= RXON_FILTER_PROMISC_MSK; |
| else |
| *filter_flags &= ~RXON_FILTER_PROMISC_MSK; |
| } |
| if (changed_flags & FIF_ALLMULTI) { |
| if (*total_flags & FIF_ALLMULTI) |
| *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; |
| else |
| *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; |
| } |
| if (changed_flags & FIF_CONTROL) { |
| if (*total_flags & FIF_CONTROL) |
| *filter_flags |= RXON_FILTER_CTL2HOST_MSK; |
| else |
| *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; |
| } |
| if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
| if (*total_flags & FIF_BCN_PRBRESP_PROMISC) |
| *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; |
| else |
| *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; |
| } |
| |
| /* We avoid iwl_commit_rxon here to commit the new filter flags |
| * since mac80211 will call ieee80211_hw_config immediately. |
| * (mc_list is not supported at this time). Otherwise, we need to |
| * queue a background iwl_commit_rxon work. |
| */ |
| |
| *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | |
| FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
| } |
| EXPORT_SYMBOL(iwl_configure_filter); |
| |
| int iwl_setup_mac(struct iwl_priv *priv) |
| { |
| int ret; |
| struct ieee80211_hw *hw = priv->hw; |
| hw->rate_control_algorithm = "iwl-agn-rs"; |
| |
| /* Tell mac80211 our characteristics */ |
| hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| IEEE80211_HW_NOISE_DBM | |
| IEEE80211_HW_AMPDU_AGGREGATION | |
| IEEE80211_HW_SPECTRUM_MGMT | |
| IEEE80211_HW_SUPPORTS_PS | |
| IEEE80211_HW_SUPPORTS_DYNAMIC_PS; |
| hw->wiphy->interface_modes = |
| BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_ADHOC); |
| |
| hw->wiphy->custom_regulatory = true; |
| |
| /* Firmware does not support this */ |
| hw->wiphy->disable_beacon_hints = true; |
| |
| hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
| /* we create the 802.11 header and a zero-length SSID element */ |
| hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; |
| |
| /* Default value; 4 EDCA QOS priorities */ |
| hw->queues = 4; |
| |
| hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
| |
| if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
| priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| &priv->bands[IEEE80211_BAND_2GHZ]; |
| if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
| priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| &priv->bands[IEEE80211_BAND_5GHZ]; |
| |
| ret = ieee80211_register_hw(priv->hw); |
| if (ret) { |
| IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); |
| return ret; |
| } |
| priv->mac80211_registered = 1; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_setup_mac); |
| |
| int iwl_set_hw_params(struct iwl_priv *priv) |
| { |
| priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; |
| priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; |
| if (priv->cfg->mod_params->amsdu_size_8K) |
| priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; |
| else |
| priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; |
| priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; |
| |
| priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; |
| |
| if (priv->cfg->mod_params->disable_11n) |
| priv->cfg->sku &= ~IWL_SKU_N; |
| |
| /* Device-specific setup */ |
| return priv->cfg->ops->lib->set_hw_params(priv); |
| } |
| EXPORT_SYMBOL(iwl_set_hw_params); |
| |
| int iwl_init_drv(struct iwl_priv *priv) |
| { |
| int ret; |
| |
| priv->ibss_beacon = NULL; |
| |
| spin_lock_init(&priv->lock); |
| spin_lock_init(&priv->sta_lock); |
| spin_lock_init(&priv->hcmd_lock); |
| |
| INIT_LIST_HEAD(&priv->free_frames); |
| |
| mutex_init(&priv->mutex); |
| |
| /* Clear the driver's (not device's) station table */ |
| iwl_clear_stations_table(priv); |
| |
| priv->data_retry_limit = -1; |
| priv->ieee_channels = NULL; |
| priv->ieee_rates = NULL; |
| priv->band = IEEE80211_BAND_2GHZ; |
| |
| priv->iw_mode = NL80211_IFTYPE_STATION; |
| |
| priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; |
| |
| /* Choose which receivers/antennas to use */ |
| if (priv->cfg->ops->hcmd->set_rxon_chain) |
| priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| |
| iwl_init_scan_params(priv); |
| |
| iwl_reset_qos(priv); |
| |
| priv->qos_data.qos_active = 0; |
| priv->qos_data.qos_cap.val = 0; |
| |
| priv->rates_mask = IWL_RATES_MASK; |
| priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX; |
| |
| ret = iwl_init_channel_map(priv); |
| if (ret) { |
| IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
| goto err; |
| } |
| |
| ret = iwlcore_init_geos(priv); |
| if (ret) { |
| IWL_ERR(priv, "initializing geos failed: %d\n", ret); |
| goto err_free_channel_map; |
| } |
| iwlcore_init_hw_rates(priv, priv->ieee_rates); |
| |
| return 0; |
| |
| err_free_channel_map: |
| iwl_free_channel_map(priv); |
| err: |
| return ret; |
| } |
| EXPORT_SYMBOL(iwl_init_drv); |
| |
| int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
| { |
| int ret = 0; |
| if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) { |
| IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n", |
| tx_power, |
| IWL_TX_POWER_TARGET_POWER_MIN); |
| return -EINVAL; |
| } |
| |
| if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) { |
| IWL_WARN(priv, "Requested user TXPOWER %d above upper limit %d.\n", |
| tx_power, |
| IWL_TX_POWER_TARGET_POWER_MAX); |
| return -EINVAL; |
| } |
| |
| if (priv->tx_power_user_lmt != tx_power) |
| force = true; |
| |
| priv->tx_power_user_lmt = tx_power; |
| |
| /* if nic is not up don't send command */ |
| if (!iwl_is_ready_rf(priv)) |
| return ret; |
| |
| if (force && priv->cfg->ops->lib->send_tx_power) |
| ret = priv->cfg->ops->lib->send_tx_power(priv); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(iwl_set_tx_power); |
| |
| void iwl_uninit_drv(struct iwl_priv *priv) |
| { |
| iwl_calib_free_results(priv); |
| iwlcore_free_geos(priv); |
| iwl_free_channel_map(priv); |
| kfree(priv->scan); |
| } |
| EXPORT_SYMBOL(iwl_uninit_drv); |
| |
| #define ICT_COUNT (PAGE_SIZE/sizeof(u32)) |
| |
| /* Free dram table */ |
| void iwl_free_isr_ict(struct iwl_priv *priv) |
| { |
| if (priv->ict_tbl_vir) { |
| pci_free_consistent(priv->pci_dev, (sizeof(u32) * ICT_COUNT) + |
| PAGE_SIZE, priv->ict_tbl_vir, |
| priv->ict_tbl_dma); |
| priv->ict_tbl_vir = NULL; |
| } |
| } |
| EXPORT_SYMBOL(iwl_free_isr_ict); |
| |
| |
| /* allocate dram shared table it is a PAGE_SIZE aligned |
| * also reset all data related to ICT table interrupt. |
| */ |
| int iwl_alloc_isr_ict(struct iwl_priv *priv) |
| { |
| |
| if (priv->cfg->use_isr_legacy) |
| return 0; |
| /* allocate shrared data table */ |
| priv->ict_tbl_vir = pci_alloc_consistent(priv->pci_dev, (sizeof(u32) * |
| ICT_COUNT) + PAGE_SIZE, |
| &priv->ict_tbl_dma); |
| if (!priv->ict_tbl_vir) |
| return -ENOMEM; |
| |
| /* align table to PAGE_SIZE boundry */ |
| priv->aligned_ict_tbl_dma = ALIGN(priv->ict_tbl_dma, PAGE_SIZE); |
| |
| IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n", |
| (unsigned long long)priv->ict_tbl_dma, |
| (unsigned long long)priv->aligned_ict_tbl_dma, |
| (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma)); |
| |
| priv->ict_tbl = priv->ict_tbl_vir + |
| (priv->aligned_ict_tbl_dma - priv->ict_tbl_dma); |
| |
| IWL_DEBUG_ISR(priv, "ict vir addr %p vir aligned %p diff %d\n", |
| priv->ict_tbl, priv->ict_tbl_vir, |
| (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma)); |
| |
| /* reset table and index to all 0 */ |
| memset(priv->ict_tbl_vir,0, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE); |
| priv->ict_index = 0; |
| |
| /* add periodic RX interrupt */ |
| priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC; |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_alloc_isr_ict); |
| |
| /* Device is going up inform it about using ICT interrupt table, |
| * also we need to tell the driver to start using ICT interrupt. |
| */ |
| int iwl_reset_ict(struct iwl_priv *priv) |
| { |
| u32 val; |
| unsigned long flags; |
| |
| if (!priv->ict_tbl_vir) |
| return 0; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| iwl_disable_interrupts(priv); |
| |
| memset(&priv->ict_tbl[0],0, sizeof(u32) * ICT_COUNT); |
| |
| val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT; |
| |
| val |= CSR_DRAM_INT_TBL_ENABLE; |
| val |= CSR_DRAM_INIT_TBL_WRAP_CHECK; |
| |
| IWL_DEBUG_ISR(priv, "CSR_DRAM_INT_TBL_REG =0x%X " |
| "aligned dma address %Lx\n", |
| val, (unsigned long long)priv->aligned_ict_tbl_dma); |
| |
| iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val); |
| priv->use_ict = true; |
| priv->ict_index = 0; |
| iwl_write32(priv, CSR_INT, priv->inta_mask); |
| iwl_enable_interrupts(priv); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_reset_ict); |
| |
| /* Device is going down disable ict interrupt usage */ |
| void iwl_disable_ict(struct iwl_priv *priv) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->use_ict = false; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| EXPORT_SYMBOL(iwl_disable_ict); |
| |
| /* interrupt handler using ict table, with this interrupt driver will |
| * stop using INTA register to get device's interrupt, reading this register |
| * is expensive, device will write interrupts in ICT dram table, increment |
| * index then will fire interrupt to driver, driver will OR all ICT table |
| * entries from current index up to table entry with 0 value. the result is |
| * the interrupt we need to service, driver will set the entries back to 0 and |
| * set index. |
| */ |
| irqreturn_t iwl_isr_ict(int irq, void *data) |
| { |
| struct iwl_priv *priv = data; |
| u32 inta, inta_mask; |
| u32 val = 0; |
| |
| if (!priv) |
| return IRQ_NONE; |
| |
| /* dram interrupt table not set yet, |
| * use legacy interrupt. |
| */ |
| if (!priv->use_ict) |
| return iwl_isr(irq, data); |
| |
| spin_lock(&priv->lock); |
| |
| /* Disable (but don't clear!) interrupts here to avoid |
| * back-to-back ISRs and sporadic interrupts from our NIC. |
| * If we have something to service, the tasklet will re-enable ints. |
| * If we *don't* have something, we'll re-enable before leaving here. |
| */ |
| inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
| iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| |
| |
| /* Ignore interrupt if there's nothing in NIC to service. |
| * This may be due to IRQ shared with another device, |
| * or due to sporadic interrupts thrown from our NIC. */ |
| if (!priv->ict_tbl[priv->ict_index]) { |
| IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); |
| goto none; |
| } |
| |
| /* read all entries that not 0 start with ict_index */ |
| while (priv->ict_tbl[priv->ict_index]) { |
| |
| val |= priv->ict_tbl[priv->ict_index]; |
| IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n", |
| priv->ict_index, |
| priv->ict_tbl[priv->ict_index]); |
| priv->ict_tbl[priv->ict_index] = 0; |
| priv->ict_index = iwl_queue_inc_wrap(priv->ict_index, |
| ICT_COUNT); |
| |
| } |
| |
| /* We should not get this value, just ignore it. */ |
| if (val == 0xffffffff) |
| val = 0; |
| |
| inta = (0xff & val) | ((0xff00 & val) << 16); |
| IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n", |
| inta, inta_mask, val); |
| |
| inta &= priv->inta_mask; |
| priv->inta |= inta; |
| |
| /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
| if (likely(inta)) |
| tasklet_schedule(&priv->irq_tasklet); |
| else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) { |
| /* Allow interrupt if was disabled by this handler and |
| * no tasklet was schedules, We should not enable interrupt, |
| * tasklet will enable it. |
| */ |
| iwl_enable_interrupts(priv); |
| } |
| |
| spin_unlock(&priv->lock); |
| return IRQ_HANDLED; |
| |
| none: |
| /* re-enable interrupts here since we don't have anything to service. |
| * only Re-enable if disabled by irq. |
| */ |
| if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) |
| iwl_enable_interrupts(priv); |
| |
| spin_unlock(&priv->lock); |
| return IRQ_NONE; |
| } |
| EXPORT_SYMBOL(iwl_isr_ict); |
| |
| |
| static irqreturn_t iwl_isr(int irq, void *data) |
| { |
| struct iwl_priv *priv = data; |
| u32 inta, inta_mask; |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| u32 inta_fh; |
| #endif |
| if (!priv) |
| return IRQ_NONE; |
| |
| spin_lock(&priv->lock); |
| |
| /* Disable (but don't clear!) interrupts here to avoid |
| * back-to-back ISRs and sporadic interrupts from our NIC. |
| * If we have something to service, the tasklet will re-enable ints. |
| * If we *don't* have something, we'll re-enable before leaving here. */ |
| inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
| iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| |
| /* Discover which interrupts are active/pending */ |
| inta = iwl_read32(priv, CSR_INT); |
| |
| /* Ignore interrupt if there's nothing in NIC to service. |
| * This may be due to IRQ shared with another device, |
| * or due to sporadic interrupts thrown from our NIC. */ |
| if (!inta) { |
| IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); |
| goto none; |
| } |
| |
| if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { |
| /* Hardware disappeared. It might have already raised |
| * an interrupt */ |
| IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); |
| goto unplugged; |
| } |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
| inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
| IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, " |
| "fh 0x%08x\n", inta, inta_mask, inta_fh); |
| } |
| #endif |
| |
| priv->inta |= inta; |
| /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
| if (likely(inta)) |
| tasklet_schedule(&priv->irq_tasklet); |
| else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) |
| iwl_enable_interrupts(priv); |
| |
| unplugged: |
| spin_unlock(&priv->lock); |
| return IRQ_HANDLED; |
| |
| none: |
| /* re-enable interrupts here since we don't have anything to service. */ |
| /* only Re-enable if diabled by irq and no schedules tasklet. */ |
| if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) |
| iwl_enable_interrupts(priv); |
| |
| spin_unlock(&priv->lock); |
| return IRQ_NONE; |
| } |
| |
| irqreturn_t iwl_isr_legacy(int irq, void *data) |
| { |
| struct iwl_priv *priv = data; |
| u32 inta, inta_mask; |
| u32 inta_fh; |
| if (!priv) |
| return IRQ_NONE; |
| |
| spin_lock(&priv->lock); |
| |
| /* Disable (but don't clear!) interrupts here to avoid |
| * back-to-back ISRs and sporadic interrupts from our NIC. |
| * If we have something to service, the tasklet will re-enable ints. |
| * If we *don't* have something, we'll re-enable before leaving here. */ |
| inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
| iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| |
| /* Discover which interrupts are active/pending */ |
| inta = iwl_read32(priv, CSR_INT); |
| inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
| |
| /* Ignore interrupt if there's nothing in NIC to service. |
| * This may be due to IRQ shared with another device, |
| * or due to sporadic interrupts thrown from our NIC. */ |
| if (!inta && !inta_fh) { |
| IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0, inta_fh == 0\n"); |
| goto none; |
| } |
| |
| if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { |
| /* Hardware disappeared. It might have already raised |
| * an interrupt */ |
| IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); |
| goto unplugged; |
| } |
| |
| IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
| inta, inta_mask, inta_fh); |
| |
| inta &= ~CSR_INT_BIT_SCD; |
| |
| /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
| if (likely(inta || inta_fh)) |
| tasklet_schedule(&priv->irq_tasklet); |
| |
| unplugged: |
| spin_unlock(&priv->lock); |
| return IRQ_HANDLED; |
| |
| none: |
| /* re-enable interrupts here since we don't have anything to service. */ |
| /* only Re-enable if diabled by irq */ |
| if (test_bit(STATUS_INT_ENABLED, &priv->status)) |
| iwl_enable_interrupts(priv); |
| spin_unlock(&priv->lock); |
| return IRQ_NONE; |
| } |
| EXPORT_SYMBOL(iwl_isr_legacy); |
| |
| int iwl_send_bt_config(struct iwl_priv *priv) |
| { |
| struct iwl_bt_cmd bt_cmd = { |
| .flags = 3, |
| .lead_time = 0xAA, |
| .max_kill = 1, |
| .kill_ack_mask = 0, |
| .kill_cts_mask = 0, |
| }; |
| |
| return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
| sizeof(struct iwl_bt_cmd), &bt_cmd); |
| } |
| EXPORT_SYMBOL(iwl_send_bt_config); |
| |
| int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) |
| { |
| u32 stat_flags = 0; |
| struct iwl_host_cmd cmd = { |
| .id = REPLY_STATISTICS_CMD, |
| .flags = flags, |
| .len = sizeof(stat_flags), |
| .data = (u8 *) &stat_flags, |
| }; |
| return iwl_send_cmd(priv, &cmd); |
| } |
| EXPORT_SYMBOL(iwl_send_statistics_request); |
| |
| /** |
| * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, |
| * using sample data 100 bytes apart. If these sample points are good, |
| * it's a pretty good bet that everything between them is good, too. |
| */ |
| static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) |
| { |
| u32 val; |
| int ret = 0; |
| u32 errcnt = 0; |
| u32 i; |
| |
| IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
| |
| for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { |
| /* read data comes through single port, auto-incr addr */ |
| /* NOTE: Use the debugless read so we don't flood kernel log |
| * if IWL_DL_IO is set */ |
| iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
| i + IWL49_RTC_INST_LOWER_BOUND); |
| val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
| if (val != le32_to_cpu(*image)) { |
| ret = -EIO; |
| errcnt++; |
| if (errcnt >= 3) |
| break; |
| } |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host, |
| * looking at all data. |
| */ |
| static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image, |
| u32 len) |
| { |
| u32 val; |
| u32 save_len = len; |
| int ret = 0; |
| u32 errcnt; |
| |
| IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
| |
| iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
| IWL49_RTC_INST_LOWER_BOUND); |
| |
| errcnt = 0; |
| for (; len > 0; len -= sizeof(u32), image++) { |
| /* read data comes through single port, auto-incr addr */ |
| /* NOTE: Use the debugless read so we don't flood kernel log |
| * if IWL_DL_IO is set */ |
| val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
| if (val != le32_to_cpu(*image)) { |
| IWL_ERR(priv, "uCode INST section is invalid at " |
| "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| save_len - len, val, le32_to_cpu(*image)); |
| ret = -EIO; |
| errcnt++; |
| if (errcnt >= 20) |
| break; |
| } |
| } |
| |
| if (!errcnt) |
| IWL_DEBUG_INFO(priv, |
| "ucode image in INSTRUCTION memory is good\n"); |
| |
| return ret; |
| } |
| |
| /** |
| * iwl_verify_ucode - determine which instruction image is in SRAM, |
| * and verify its contents |
| */ |
| int iwl_verify_ucode(struct iwl_priv *priv) |
| { |
| __le32 *image; |
| u32 len; |
| int ret; |
| |
| /* Try bootstrap */ |
| image = (__le32 *)priv->ucode_boot.v_addr; |
| len = priv->ucode_boot.len; |
| ret = iwlcore_verify_inst_sparse(priv, image, len); |
| if (!ret) { |
| IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
| return 0; |
| } |
| |
| /* Try initialize */ |
| image = (__le32 *)priv->ucode_init.v_addr; |
| len = priv->ucode_init.len; |
| ret = iwlcore_verify_inst_sparse(priv, image, len); |
| if (!ret) { |
| IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
| return 0; |
| } |
| |
| /* Try runtime/protocol */ |
| image = (__le32 *)priv->ucode_code.v_addr; |
| len = priv->ucode_code.len; |
| ret = iwlcore_verify_inst_sparse(priv, image, len); |
| if (!ret) { |
| IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
| return 0; |
| } |
| |
| IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
| |
| /* Since nothing seems to match, show first several data entries in |
| * instruction SRAM, so maybe visual inspection will give a clue. |
| * Selection of bootstrap image (vs. other images) is arbitrary. */ |
| image = (__le32 *)priv->ucode_boot.v_addr; |
| len = priv->ucode_boot.len; |
| ret = iwl_verify_inst_full(priv, image, len); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(iwl_verify_ucode); |
| |
| |
| void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
| { |
| struct iwl_ct_kill_config cmd; |
| struct iwl_ct_kill_throttling_config adv_cmd; |
| unsigned long flags; |
| int ret = 0; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
| CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| priv->thermal_throttle.ct_kill_toggle = false; |
| |
| switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { |
| case CSR_HW_REV_TYPE_1000: |
| case CSR_HW_REV_TYPE_6x00: |
| case CSR_HW_REV_TYPE_6x50: |
| adv_cmd.critical_temperature_enter = |
| cpu_to_le32(priv->hw_params.ct_kill_threshold); |
| adv_cmd.critical_temperature_exit = |
| cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); |
| |
| ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
| sizeof(adv_cmd), &adv_cmd); |
| if (ret) |
| IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| else |
| IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| "succeeded, " |
| "critical temperature enter is %d," |
| "exit is %d\n", |
| priv->hw_params.ct_kill_threshold, |
| priv->hw_params.ct_kill_exit_threshold); |
| break; |
| default: |
| cmd.critical_temperature_R = |
| cpu_to_le32(priv->hw_params.ct_kill_threshold); |
| |
| ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
| sizeof(cmd), &cmd); |
| if (ret) |
| IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| else |
| IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| "succeeded, " |
| "critical temperature is %d\n", |
| priv->hw_params.ct_kill_threshold); |
| break; |
| } |
| } |
| EXPORT_SYMBOL(iwl_rf_kill_ct_config); |
| |
| |
| /* |
| * CARD_STATE_CMD |
| * |
| * Use: Sets the device's internal card state to enable, disable, or halt |
| * |
| * When in the 'enable' state the card operates as normal. |
| * When in the 'disable' state, the card enters into a low power mode. |
| * When in the 'halt' state, the card is shut down and must be fully |
| * restarted to come back on. |
| */ |
| int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = REPLY_CARD_STATE_CMD, |
| .len = sizeof(u32), |
| .data = &flags, |
| .flags = meta_flag, |
| }; |
| |
| return iwl_send_cmd(priv, &cmd); |
| } |
| |
| void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, |
| struct iwl_rx_mem_buffer *rxb) |
| { |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
| struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif); |
| IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n", |
| sleep->pm_sleep_mode, sleep->pm_wakeup_src); |
| #endif |
| } |
| EXPORT_SYMBOL(iwl_rx_pm_sleep_notif); |
| |
| void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
| struct iwl_rx_mem_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
| IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled " |
| "notification for %s:\n", |
| le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); |
| iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); |
| } |
| EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif); |
| |
| void iwl_rx_reply_error(struct iwl_priv *priv, |
| struct iwl_rx_mem_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
| |
| IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) " |
| "seq 0x%04X ser 0x%08X\n", |
| le32_to_cpu(pkt->u.err_resp.error_type), |
| get_cmd_string(pkt->u.err_resp.cmd_id), |
| pkt->u.err_resp.cmd_id, |
| le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), |
| le32_to_cpu(pkt->u.err_resp.error_info)); |
| } |
| EXPORT_SYMBOL(iwl_rx_reply_error); |
| |
| void iwl_clear_isr_stats(struct iwl_priv *priv) |
| { |
| memset(&priv->isr_stats, 0, sizeof(priv->isr_stats)); |
| } |
| |
| int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
| const struct ieee80211_tx_queue_params *params) |
| { |
| struct iwl_priv *priv = hw->priv; |
| unsigned long flags; |
| int q; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| if (!iwl_is_ready_rf(priv)) { |
| IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| return -EIO; |
| } |
| |
| if (queue >= AC_NUM) { |
| IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); |
| return 0; |
| } |
| |
| q = AC_NUM - 1 - queue; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); |
| priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); |
| priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; |
| priv->qos_data.def_qos_parm.ac[q].edca_txop = |
| cpu_to_le16((params->txop * 32)); |
| |
| priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; |
| priv->qos_data.qos_active = 1; |
| |
| if (priv->iw_mode == NL80211_IFTYPE_AP) |
| iwl_activate_qos(priv, 1); |
| else if (priv->assoc_id && iwl_is_associated(priv)) |
| iwl_activate_qos(priv, 0); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_mac_conf_tx); |
| |
| static void iwl_ht_conf(struct iwl_priv *priv, |
| struct ieee80211_bss_conf *bss_conf) |
| { |
| struct ieee80211_sta_ht_cap *ht_conf; |
| struct iwl_ht_info *iwl_conf = &priv->current_ht_config; |
| struct ieee80211_sta *sta; |
| |
| IWL_DEBUG_MAC80211(priv, "enter: \n"); |
| |
| if (!iwl_conf->is_ht) |
| return; |
| |
| |
| /* |
| * It is totally wrong to base global information on something |
| * that is valid only when associated, alas, this driver works |
| * that way and I don't know how to fix it. |
| */ |
| |
| rcu_read_lock(); |
| sta = ieee80211_find_sta(priv->hw, priv->bssid); |
| if (!sta) { |
| rcu_read_unlock(); |
| return; |
| } |
| ht_conf = &sta->ht_cap; |
| |
| if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) |
| iwl_conf->sgf |= HT_SHORT_GI_20MHZ; |
| if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) |
| iwl_conf->sgf |= HT_SHORT_GI_40MHZ; |
| |
| iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); |
| iwl_conf->max_amsdu_size = |
| !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); |
| |
| iwl_conf->supported_chan_width = |
| !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); |
| |
| /* |
| * XXX: The HT configuration needs to be moved into iwl_mac_config() |
| * to be done there correctly. |
| */ |
| |
| iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
| if (conf_is_ht40_minus(&priv->hw->conf)) |
| iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; |
| else if (conf_is_ht40_plus(&priv->hw->conf)) |
| iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; |
| |
| /* If no above or below channel supplied disable HT40 channel */ |
| if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE && |
| iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
| iwl_conf->supported_chan_width = 0; |
| |
| iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); |
| |
| memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16); |
| |
| iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0; |
| iwl_conf->ht_protection = |
| bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; |
| iwl_conf->non_GF_STA_present = |
| !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); |
| |
| rcu_read_unlock(); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| } |
| |
| #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
| void iwl_bss_info_changed(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changes) |
| { |
| struct iwl_priv *priv = hw->priv; |
| int ret; |
| |
| IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); |
| |
| if (!iwl_is_alive(priv)) |
| return; |
| |
| mutex_lock(&priv->mutex); |
| |
| if (changes & BSS_CHANGED_BEACON && |
| priv->iw_mode == NL80211_IFTYPE_AP) { |
| dev_kfree_skb(priv->ibss_beacon); |
| priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
| } |
| |
| if (changes & BSS_CHANGED_BEACON_INT) { |
| priv->beacon_int = bss_conf->beacon_int; |
| /* TODO: in AP mode, do something to make this take effect */ |
| } |
| |
| if (changes & BSS_CHANGED_BSSID) { |
| IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid); |
| |
| /* |
| * If there is currently a HW scan going on in the |
| * background then we need to cancel it else the RXON |
| * below/in post_associate will fail. |
| */ |
| if (iwl_scan_cancel_timeout(priv, 100)) { |
| IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); |
| IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); |
| mutex_unlock(&priv->mutex); |
| return; |
| } |
| |
| /* mac80211 only sets assoc when in STATION mode */ |
| if (priv->iw_mode == NL80211_IFTYPE_ADHOC || |
| bss_conf->assoc) { |
| memcpy(priv->staging_rxon.bssid_addr, |
| bss_conf->bssid, ETH_ALEN); |
| |
| /* currently needed in a few places */ |
| memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); |
| } else { |
| priv->staging_rxon.filter_flags &= |
| ~RXON_FILTER_ASSOC_MSK; |
| } |
| |
| } |
| |
| /* |
| * This needs to be after setting the BSSID in case |
| * mac80211 decides to do both changes at once because |
| * it will invoke post_associate. |
| */ |
| if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| changes & BSS_CHANGED_BEACON) { |
| struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); |
| |
| if (beacon) |
| iwl_mac_beacon_update(hw, beacon); |
| } |
| |
| if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
| IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", |
| bss_conf->use_short_preamble); |
| if (bss_conf->use_short_preamble) |
| priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
| else |
| priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| } |
| |
| if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
| IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot); |
| if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
| priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
| else |
| priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; |
| } |
| |
| if (changes & BSS_CHANGED_BASIC_RATES) { |
| /* XXX use this information |
| * |
| * To do that, remove code from iwl_set_rate() and put something |
| * like this here: |
| * |
| if (A-band) |
| priv->staging_rxon.ofdm_basic_rates = |
| bss_conf->basic_rates; |
| else |
| priv->staging_rxon.ofdm_basic_rates = |
| bss_conf->basic_rates >> 4; |
| priv->staging_rxon.cck_basic_rates = |
| bss_conf->basic_rates & 0xF; |
| */ |
| } |
| |
| if (changes & BSS_CHANGED_HT) { |
| iwl_ht_conf(priv, bss_conf); |
| |
| if (priv->cfg->ops->hcmd->set_rxon_chain) |
| priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| } |
| |
| if (changes & BSS_CHANGED_ASSOC) { |
| IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); |
| if (bss_conf->assoc) { |
| priv->assoc_id = bss_conf->aid; |
| priv->beacon_int = bss_conf->beacon_int; |
| priv->timestamp = bss_conf->timestamp; |
| priv->assoc_capability = bss_conf->assoc_capability; |
| |
| /* |
| * We have just associated, don't start scan too early |
| * leave time for EAPOL exchange to complete. |
| * |
| * XXX: do this in mac80211 |
| */ |
| priv->next_scan_jiffies = jiffies + |
| IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; |
| if (!iwl_is_rfkill(priv)) |
| priv->cfg->ops->lib->post_associate(priv); |
| } else |
| priv->assoc_id = 0; |
| |
| } |
| |
| if (changes && iwl_is_associated(priv) && priv->assoc_id) { |
| IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n", |
| changes); |
| ret = iwl_send_rxon_assoc(priv); |
| if (!ret) { |
| /* Sync active_rxon with latest change. */ |
| memcpy((void *)&priv->active_rxon, |
| &priv->staging_rxon, |
| sizeof(struct iwl_rxon_cmd)); |
| } |
| } |
| |
| mutex_unlock(&priv->mutex); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| } |
| EXPORT_SYMBOL(iwl_bss_info_changed); |
| |
| int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
| { |
| struct iwl_priv *priv = hw->priv; |
| unsigned long flags; |
| __le64 timestamp; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| if (!iwl_is_ready_rf(priv)) { |
| IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| return -EIO; |
| } |
| |
| if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
| IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n"); |
| return -EIO; |
| } |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| if (priv->ibss_beacon) |
| dev_kfree_skb(priv->ibss_beacon); |
| |
| priv->ibss_beacon = skb; |
| |
| priv->assoc_id = 0; |
| timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; |
| priv->timestamp = le64_to_cpu(timestamp); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| iwl_reset_qos(priv); |
| |
| priv->cfg->ops->lib->post_associate(priv); |
| |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_mac_beacon_update); |
| |
| int iwl_set_mode(struct iwl_priv *priv, int mode) |
| { |
| if (mode == NL80211_IFTYPE_ADHOC) { |
| const struct iwl_channel_info *ch_info; |
| |
| ch_info = iwl_get_channel_info(priv, |
| priv->band, |
| le16_to_cpu(priv->staging_rxon.channel)); |
| |
| if (!ch_info || !is_channel_ibss(ch_info)) { |
| IWL_ERR(priv, "channel %d not IBSS channel\n", |
| le16_to_cpu(priv->staging_rxon.channel)); |
| return -EINVAL; |
| } |
| } |
| |
| iwl_connection_init_rx_config(priv, mode); |
| |
| if (priv->cfg->ops->hcmd->set_rxon_chain) |
| priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| |
| memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
| |
| iwl_clear_stations_table(priv); |
| |
| /* dont commit rxon if rf-kill is on*/ |
| if (!iwl_is_ready_rf(priv)) |
| return -EAGAIN; |
| |
| iwlcore_commit_rxon(priv); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_set_mode); |
| |
| int iwl_mac_add_interface(struct ieee80211_hw *hw, |
| struct ieee80211_if_init_conf *conf) |
| { |
| struct iwl_priv *priv = hw->priv; |
| unsigned long flags; |
| |
| IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type); |
| |
| if (priv->vif) { |
| IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->vif = conf->vif; |
| priv->iw_mode = conf->type; |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| mutex_lock(&priv->mutex); |
| |
| if (conf->mac_addr) { |
| IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr); |
| memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
| } |
| |
| if (iwl_set_mode(priv, conf->type) == -EAGAIN) |
| /* we are not ready, will run again when ready */ |
| set_bit(STATUS_MODE_PENDING, &priv->status); |
| |
| mutex_unlock(&priv->mutex); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_mac_add_interface); |
| |
| void iwl_mac_remove_interface(struct ieee80211_hw *hw, |
| struct ieee80211_if_init_conf *conf) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| mutex_lock(&priv->mutex); |
| |
| if (iwl_is_ready_rf(priv)) { |
| iwl_scan_cancel_timeout(priv, 100); |
| priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| iwlcore_commit_rxon(priv); |
| } |
| if (priv->vif == conf->vif) { |
| priv->vif = NULL; |
| memset(priv->bssid, 0, ETH_ALEN); |
| } |
| mutex_unlock(&priv->mutex); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| |
| } |
| EXPORT_SYMBOL(iwl_mac_remove_interface); |
| |
| /** |
| * iwl_mac_config - mac80211 config callback |
| * |
| * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to |
| * be set inappropriately and the driver currently sets the hardware up to |
| * use it whenever needed. |
| */ |
| int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) |
| { |
| struct iwl_priv *priv = hw->priv; |
| const struct iwl_channel_info *ch_info; |
| struct ieee80211_conf *conf = &hw->conf; |
| unsigned long flags = 0; |
| int ret = 0; |
| u16 ch; |
| int scan_active = 0; |
| |
| mutex_lock(&priv->mutex); |
| |
| IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n", |
| conf->channel->hw_value, changed); |
| |
| if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
| test_bit(STATUS_SCANNING, &priv->status))) { |
| scan_active = 1; |
| IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); |
| } |
| |
| |
| /* during scanning mac80211 will delay channel setting until |
| * scan finish with changed = 0 |
| */ |
| if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { |
| if (scan_active) |
| goto set_ch_out; |
| |
| ch = ieee80211_frequency_to_channel(conf->channel->center_freq); |
| ch_info = iwl_get_channel_info(priv, conf->channel->band, ch); |
| if (!is_channel_valid(ch_info)) { |
| IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); |
| ret = -EINVAL; |
| goto set_ch_out; |
| } |
| |
| if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| !is_channel_ibss(ch_info)) { |
| IWL_ERR(priv, "channel %d in band %d not " |
| "IBSS channel\n", |
| conf->channel->hw_value, conf->channel->band); |
| ret = -EINVAL; |
| goto set_ch_out; |
| } |
| |
| priv->current_ht_config.is_ht = conf_is_ht(conf); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| |
| /* if we are switching from ht to 2.4 clear flags |
| * from any ht related info since 2.4 does not |
| * support ht */ |
| if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) |
| priv->staging_rxon.flags = 0; |
| |
| iwl_set_rxon_channel(priv, conf->channel); |
| |
| iwl_set_flags_for_band(priv, conf->channel->band); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| set_ch_out: |
| /* The list of supported rates and rate mask can be different |
| * for each band; since the band may have changed, reset |
| * the rate mask to what mac80211 lists */ |
| iwl_set_rate(priv); |
| } |
| |
| if (changed & IEEE80211_CONF_CHANGE_PS) { |
| ret = iwl_power_update_mode(priv, false); |
| if (ret) |
| IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); |
| } |
| |
| if (changed & IEEE80211_CONF_CHANGE_POWER) { |
| IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", |
| priv->tx_power_user_lmt, conf->power_level); |
| |
| iwl_set_tx_power(priv, conf->power_level, false); |
| } |
| |
| /* call to ensure that 4965 rx_chain is set properly in monitor mode */ |
| if (priv->cfg->ops->hcmd->set_rxon_chain) |
| priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| |
| if (!iwl_is_ready(priv)) { |
| IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
| goto out; |
| } |
| |
| if (scan_active) |
| goto out; |
| |
| if (memcmp(&priv->active_rxon, |
| &priv->staging_rxon, sizeof(priv->staging_rxon))) |
| iwlcore_commit_rxon(priv); |
| else |
| IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n"); |
| |
| |
| out: |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| mutex_unlock(&priv->mutex); |
| return ret; |
| } |
| EXPORT_SYMBOL(iwl_mac_config); |
| |
| int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, |
| struct ieee80211_tx_queue_stats *stats) |
| { |
| struct iwl_priv *priv = hw->priv; |
| int i, avail; |
| struct iwl_tx_queue *txq; |
| struct iwl_queue *q; |
| unsigned long flags; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| if (!iwl_is_ready_rf(priv)) { |
| IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| return -EIO; |
| } |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| for (i = 0; i < AC_NUM; i++) { |
| txq = &priv->txq[i]; |
| q = &txq->q; |
| avail = iwl_queue_space(q); |
| |
| stats[i].len = q->n_window - avail; |
| stats[i].limit = q->n_window - q->high_mark; |
| stats[i].count = q->n_window; |
| |
| } |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_mac_get_tx_stats); |
| |
| void iwl_mac_reset_tsf(struct ieee80211_hw *hw) |
| { |
| struct iwl_priv *priv = hw->priv; |
| unsigned long flags; |
| |
| mutex_lock(&priv->mutex); |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| iwl_reset_qos(priv); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->assoc_id = 0; |
| priv->assoc_capability = 0; |
| priv->assoc_station_added = 0; |
| |
| /* new association get rid of ibss beacon skb */ |
| if (priv->ibss_beacon) |
| dev_kfree_skb(priv->ibss_beacon); |
| |
| priv->ibss_beacon = NULL; |
| |
| priv->beacon_int = priv->vif->bss_conf.beacon_int; |
| priv->timestamp = 0; |
| if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
| priv->beacon_int = 0; |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| if (!iwl_is_ready_rf(priv)) { |
| IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
| mutex_unlock(&priv->mutex); |
| return; |
| } |
| |
| /* we are restarting association process |
| * clear RXON_FILTER_ASSOC_MSK bit |
| */ |
| if (priv->iw_mode != NL80211_IFTYPE_AP) { |
| iwl_scan_cancel_timeout(priv, 100); |
| priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| iwlcore_commit_rxon(priv); |
| } |
| |
| if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
| IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n"); |
| mutex_unlock(&priv->mutex); |
| return; |
| } |
| |
| iwl_set_rate(priv); |
| |
| mutex_unlock(&priv->mutex); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| } |
| EXPORT_SYMBOL(iwl_mac_reset_tsf); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| |
| #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES) |
| |
| void iwl_reset_traffic_log(struct iwl_priv *priv) |
| { |
| priv->tx_traffic_idx = 0; |
| priv->rx_traffic_idx = 0; |
| if (priv->tx_traffic) |
| memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); |
| if (priv->rx_traffic) |
| memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); |
| } |
| |
| int iwl_alloc_traffic_mem(struct iwl_priv *priv) |
| { |
| u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE; |
| |
| if (iwl_debug_level & IWL_DL_TX) { |
| if (!priv->tx_traffic) { |
| priv->tx_traffic = |
| kzalloc(traffic_size, GFP_KERNEL); |
| if (!priv->tx_traffic) |
| return -ENOMEM; |
| } |
| } |
| if (iwl_debug_level & IWL_DL_RX) { |
| if (!priv->rx_traffic) { |
| priv->rx_traffic = |
| kzalloc(traffic_size, GFP_KERNEL); |
| if (!priv->rx_traffic) |
| return -ENOMEM; |
| } |
| } |
| iwl_reset_traffic_log(priv); |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_alloc_traffic_mem); |
| |
| void iwl_free_traffic_mem(struct iwl_priv *priv) |
| { |
| kfree(priv->tx_traffic); |
| priv->tx_traffic = NULL; |
| |
| kfree(priv->rx_traffic); |
| priv->rx_traffic = NULL; |
| } |
| EXPORT_SYMBOL(iwl_free_traffic_mem); |
| |
| void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv, |
| u16 length, struct ieee80211_hdr *header) |
| { |
| __le16 fc; |
| u16 len; |
| |
| if (likely(!(iwl_debug_level & IWL_DL_TX))) |
| return; |
| |
| if (!priv->tx_traffic) |
| return; |
| |
| fc = header->frame_control; |
| if (ieee80211_is_data(fc)) { |
| len = (length > IWL_TRAFFIC_ENTRY_SIZE) |
| ? IWL_TRAFFIC_ENTRY_SIZE : length; |
| memcpy((priv->tx_traffic + |
| (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), |
| header, len); |
| priv->tx_traffic_idx = |
| (priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; |
| } |
| } |
| EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame); |
| |
| void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv, |
| u16 length, struct ieee80211_hdr *header) |
| { |
| __le16 fc; |
| u16 len; |
| |
| if (likely(!(iwl_debug_level & IWL_DL_RX))) |
| return; |
| |
| if (!priv->rx_traffic) |
| return; |
| |
| fc = header->frame_control; |
| if (ieee80211_is_data(fc)) { |
| len = (length > IWL_TRAFFIC_ENTRY_SIZE) |
| ? IWL_TRAFFIC_ENTRY_SIZE : length; |
| memcpy((priv->rx_traffic + |
| (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), |
| header, len); |
| priv->rx_traffic_idx = |
| (priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; |
| } |
| } |
| EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame); |
| |
| const char *get_mgmt_string(int cmd) |
| { |
| switch (cmd) { |
| IWL_CMD(MANAGEMENT_ASSOC_REQ); |
| IWL_CMD(MANAGEMENT_ASSOC_RESP); |
| IWL_CMD(MANAGEMENT_REASSOC_REQ); |
| IWL_CMD(MANAGEMENT_REASSOC_RESP); |
| IWL_CMD(MANAGEMENT_PROBE_REQ); |
| IWL_CMD(MANAGEMENT_PROBE_RESP); |
| IWL_CMD(MANAGEMENT_BEACON); |
| IWL_CMD(MANAGEMENT_ATIM); |
| IWL_CMD(MANAGEMENT_DISASSOC); |
| IWL_CMD(MANAGEMENT_AUTH); |
| IWL_CMD(MANAGEMENT_DEAUTH); |
| IWL_CMD(MANAGEMENT_ACTION); |
| default: |
| return "UNKNOWN"; |
| |
| } |
| } |
| |
| const char *get_ctrl_string(int cmd) |
| { |
| switch (cmd) { |
| IWL_CMD(CONTROL_BACK_REQ); |
| IWL_CMD(CONTROL_BACK); |
| IWL_CMD(CONTROL_PSPOLL); |
| IWL_CMD(CONTROL_RTS); |
| IWL_CMD(CONTROL_CTS); |
| IWL_CMD(CONTROL_ACK); |
| IWL_CMD(CONTROL_CFEND); |
| IWL_CMD(CONTROL_CFENDACK); |
| default: |
| return "UNKNOWN"; |
| |
| } |
| } |
| |
| void iwl_clear_tx_stats(struct iwl_priv *priv) |
| { |
| memset(&priv->tx_stats, 0, sizeof(struct traffic_stats)); |
| |
| } |
| |
| void iwl_clear_rx_stats(struct iwl_priv *priv) |
| { |
| memset(&priv->rx_stats, 0, sizeof(struct traffic_stats)); |
| } |
| |
| /* |
| * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will |
| * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass. |
| * Use debugFs to display the rx/rx_statistics |
| * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL |
| * information will be recorded, but DATA pkt still will be recorded |
| * for the reason of iwl_led.c need to control the led blinking based on |
| * number of tx and rx data. |
| * |
| */ |
| void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len) |
| { |
| struct traffic_stats *stats; |
| |
| if (is_tx) |
| stats = &priv->tx_stats; |
| else |
| stats = &priv->rx_stats; |
| |
| if (ieee80211_is_mgmt(fc)) { |
| switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { |
| case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): |
| stats->mgmt[MANAGEMENT_ASSOC_REQ]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): |
| stats->mgmt[MANAGEMENT_ASSOC_RESP]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): |
| stats->mgmt[MANAGEMENT_REASSOC_REQ]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): |
| stats->mgmt[MANAGEMENT_REASSOC_RESP]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ): |
| stats->mgmt[MANAGEMENT_PROBE_REQ]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP): |
| stats->mgmt[MANAGEMENT_PROBE_RESP]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_BEACON): |
| stats->mgmt[MANAGEMENT_BEACON]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_ATIM): |
| stats->mgmt[MANAGEMENT_ATIM]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_DISASSOC): |
| stats->mgmt[MANAGEMENT_DISASSOC]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_AUTH): |
| stats->mgmt[MANAGEMENT_AUTH]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_DEAUTH): |
| stats->mgmt[MANAGEMENT_DEAUTH]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_ACTION): |
| stats->mgmt[MANAGEMENT_ACTION]++; |
| break; |
| } |
| } else if (ieee80211_is_ctl(fc)) { |
| switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { |
| case cpu_to_le16(IEEE80211_STYPE_BACK_REQ): |
| stats->ctrl[CONTROL_BACK_REQ]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_BACK): |
| stats->ctrl[CONTROL_BACK]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_PSPOLL): |
| stats->ctrl[CONTROL_PSPOLL]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_RTS): |
| stats->ctrl[CONTROL_RTS]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_CTS): |
| stats->ctrl[CONTROL_CTS]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_ACK): |
| stats->ctrl[CONTROL_ACK]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_CFEND): |
| stats->ctrl[CONTROL_CFEND]++; |
| break; |
| case cpu_to_le16(IEEE80211_STYPE_CFENDACK): |
| stats->ctrl[CONTROL_CFENDACK]++; |
| break; |
| } |
| } else { |
| /* data */ |
| stats->data_cnt++; |
| stats->data_bytes += len; |
| } |
| } |
| EXPORT_SYMBOL(iwl_update_stats); |
| #endif |
| |
| #ifdef CONFIG_PM |
| |
| int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct iwl_priv *priv = pci_get_drvdata(pdev); |
| |
| /* |
| * This function is called when system goes into suspend state |
| * mac80211 will call iwl_mac_stop() from the mac80211 suspend function |
| * first but since iwl_mac_stop() has no knowledge of who the caller is, |
| * it will not call apm_ops.stop() to stop the DMA operation. |
| * Calling apm_ops.stop here to make sure we stop the DMA. |
| */ |
| priv->cfg->ops->lib->apm_ops.stop(priv); |
| |
| pci_save_state(pdev); |
| pci_disable_device(pdev); |
| pci_set_power_state(pdev, PCI_D3hot); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_pci_suspend); |
| |
| int iwl_pci_resume(struct pci_dev *pdev) |
| { |
| struct iwl_priv *priv = pci_get_drvdata(pdev); |
| int ret; |
| |
| pci_set_power_state(pdev, PCI_D0); |
| ret = pci_enable_device(pdev); |
| if (ret) |
| return ret; |
| pci_restore_state(pdev); |
| iwl_enable_interrupts(priv); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(iwl_pci_resume); |
| |
| #endif /* CONFIG_PM */ |